The technology consultant on the film, John Underkoffler, was careful to make the devices believable by keeping them feasible. And if feasible, then why not actually build them? It's taken several years, but Underkoffler, a genuine prodigy out of MIT, seems to have built the gesture controlled computer in full. He's dubbed it "g-Speak".

It's not hard to imagine the scenario of a film editor walking into a darkened editing bay with a projector or two hanging from the ceiling. He rolls up his sleeves, cracks open a Red Bull, and throws his hands up as if to conduct a symphony. The raw footage files show up on the wall, and the order from seeming chaos begins. Arms wildly moving, hands flaring and closing, pointing then grabbing, the finished timeline comes together with previously impossible speed.